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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-16 13:40:42 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2018-02-21 11:58:19 +1100 |
| commit | 7f4c8e8ce0b78ca046643d7f4f63d81f4fd11746 (patch) | |
| tree | 1083ea2e11490069aa0bba324cc48bb73a0f627b /core/device.c | |
| parent | 08b1929052f8dfa1cc6b0ab3a9df77c9b5493914 (diff) | |
| download | skiboot-7f4c8e8ce0b78ca046643d7f4f63d81f4fd11746.zip skiboot-7f4c8e8ce0b78ca046643d7f4f63d81f4fd11746.tar.gz skiboot-7f4c8e8ce0b78ca046643d7f4f63d81f4fd11746.tar.bz2 | |
dt: add /cpus/ibm, powerpc-cpu-features device tree bindings
This is a new CPU feature advertising interface that is fine-grained,
extensible, aware of privilege levels, and gives control of features
to all levels of the stack (firmware, hypervisor, and OS).
The design and binding specification is described in detail in doc/.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[stewart: fix maybe-uninitialized warning from older GCC, doc cleanup]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'core/device.c')
| -rw-r--r-- | core/device.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/core/device.c b/core/device.c index 50fbb18..38dbdfc 100644 --- a/core/device.c +++ b/core/device.c @@ -598,6 +598,13 @@ u32 dt_property_get_cell(const struct dt_property *prop, u32 index) return fdt32_to_cpu(((const u32 *)prop->prop)[index]); } +void dt_property_set_cell(struct dt_property *prop, u32 index, u32 val) +{ + assert(prop->len >= (index+1)*sizeof(u32)); + /* Always aligned, so this works. */ + ((u32 *)prop->prop)[index] = cpu_to_fdt32(val); +} + /* First child of this node. */ struct dt_node *dt_first(const struct dt_node *root) { |